CN1480940A - Recording medium for recording data compressed compound signal - Google Patents
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- 239000002131 composite material Substances 0.000 claims abstract description 78
- 230000005540 biological transmission Effects 0.000 claims description 15
- 230000004044 response Effects 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims 2
- 238000000034 method Methods 0.000 description 16
- 230000009467 reduction Effects 0.000 description 10
- 239000000203 mixture Substances 0.000 description 9
- 238000007906 compression Methods 0.000 description 7
- 230000006835 compression Effects 0.000 description 7
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/00007—Time or data compression or expansion
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/86—Arrangements characterised by the broadcast information itself
- H04H20/88—Stereophonic broadcast systems
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/10527—Audio or video recording; Data buffering arrangements
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
- G11B20/10—Digital recording or reproducing
- G11B20/18—Error detection or correction; Testing, e.g. of drop-outs
- G11B20/1833—Error detection or correction; Testing, e.g. of drop-outs by adding special lists or symbols to the coded information
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
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Abstract
A data compression apparatus is proposed for data compressing at least a first and a second digital information signal (L0,L1,L2,...,R0,R1,R2,...), each of the at least two digital information signals comprising subsequent samples. The apparatus comprises an input (1,2) for receiving the first and second digital information signal, a merging unit (6) for merging the samples of the first and second digital information signal after each other into one datastream so as to obtain a composite information signal (L0,R0,L1,R1,L2,R2,...). Further, a data compression unit (12) is available for data compressing the composite information signal so as to obtain a data compressed composite information signal and an output (16) is present for supplying the data compressed composite information signal.
Description
Technical field
The present invention relates to a kind of data compression device, this equipment is used for the first via and the second way word information signal are at least done the data compression, and each road in the two-way digital information signal all comprises subsequent samples at least, and this data compression device comprises:
The device of-reception the first via and the second way word information signal,
-first via and the second way word information signal are merged obtaining the signal combining means of composite information signal,
-the composite information signal is done data compressions obtaining the data compression device of data compression composite information signal,
-output unit of data compression composite information signal is provided, it offers the data expansion equipment with data compression composite information signal, the data expansion equipment is used for the data compression composite information signal that obtains from least the first and second way word information signals is done the data expansion, and this expansion equipment comprises
The input media of-reception data compression composite information signal,
-data expanding unit is used for compressing data composite information signal and does data expansions obtaining data expansion composite information signal,
-reduction apparatus, reduction obtains the duplicate of the first and second way word information signals from data expansion composite information signal,
-output unit of at least the first and second way word information reproduction signal product is provided, it can output to signal the transmitter that comprises data compression device, output to the receiver that comprises the data expansion equipment, output to the method (method) that is used for data compression, output to the method (method) that is used for the data expansion and output to record carrier.
Background technology
It is known that stereophonic signal is compressed in the present technique field as data.This paper is with reference to EP-A 402,973, the file D1 in the promptly appended associated documents catalogue.This document has been described a kind of subband coder, wherein the left and right sound track signals composition of stereophonic signal is all done the A/D conversion with a certain specific sample frequency such as 44.1kHz, then sampled result is the wide voice signal forms of 24 bit words, offers a subband separation filter.This subband separation filter is many relevant arrowband subband signals with the voice signal component separating.Utilize auditory psychology analytical model (psycho acoustic model) can obtain a shield threshold value, the method of a certain specific bit number of each sample dispensing by giving each subband signal piece, the sample block of subband signal is sent because of above-mentioned shield threshold value quantizes to cause the voice signal of mass data compression by numerical quantization.The realization of data compression is based on " losing " those inaudible voice signal compositions, so this is a kind of lossy compression method method.
In the intensity stereo pattern, sample of signal by stereophonic signal left and right sound track signals composition is incorporated in the same subband, their additions are obtained the complex sub-band signals sample, then this complex sub-band signals sample is done the data compression, can also obtain further data reduction.
The data compression of describing among the file D1 is a kind of intelligentized relatively data compression method, needs the gate circuit or the instruction of some, and when realizing with hardware or software respectively, cost is more expensive.And when realizing with hardware or software respectively, follow-up data expansion equipment also needs the gate circuit or the instruction of some.
Summary of the invention
The present invention aims to provide a kind of data processing equipment, and it does the data compression to the first via and the second way word information signal at least, so that information signal can be in a kind of simpler mode by data compression, with a kind of simpler data compressor lossless encoder for example.And corresponding expansion equipment also can be simpler and cheap.
Comprise merger device (merging means) according to data compression device of the present invention, it is that data stream is to obtain described composite information signal with the first via and the second way word information signal sample merger successively, this data compression device has a control input end that is used to receive control signal, this data compression device is used for the change of responsive control signal to be used for the data compression to the composite information signal, this control signal generator means is used for producing control signal, described control signal generator means has an input end that is used to receive the composite information signal, and response composite information signal is adapted to produce control signal.
This data compression device, corresponding data expansion equipment, comprise this data compression device transmitter, comprise the receiver of this data expansion equipment and the preferred embodiment of record carrier, be the theme of dependent claims.
Description of drawings
By understanding and understand these and other aspect characteristic of the present invention, wherein with reference to the embodiment that provides in the following accompanying drawing
Fig. 1 represents the embodiment of data compression device,
Fig. 2 represents another embodiment of data compression device,
Fig. 3 represents another embodiment of merger unit,
Data compression device in Fig. 4 presentation graphs 1, this data compression device are included in and are used for the recording unit of data compression composite recording signal on record carrier,
Fig. 5 represents this data compression device, and this data compression device is included in and is used for the transmitting apparatus that the data compression composite signal sent through transmission medium,
Fig. 6 represents another embodiment of this recording unit, and it also comprises error correcting encoder and channel encoder,
Fig. 7 represents the embodiment of data expansion equipment, and the data expansion equipment expands to the duplicate of original information signal with the data compression composite signal,
Fig. 8 represents another embodiment of this data expansion equipment,
Fig. 9 represents another embodiment of this reduction unit,
Data expansion equipment in Figure 10 presentation graphs 7, this data expansion equipment is included in the reclaim equiment that is used for producing again from record carrier the data compression composite signal, and
Data expansion equipment in Figure 11 presentation graphs 7, this data expansion equipment are included in the receiving equipment that is used for receiving from transmission medium the data compression composite signal,
Figure 12 represents another embodiment of this reclaim equiment, and it also comprises channel decoder and error correction unit,
Embodiment
Fig. 1 represents the embodiment according to data compression device of the present invention, comprises the sample L that is used for receiving first via digital information signal
0, L
1, L
2 ... entry terminal 1 and be used for receiving the sample R of the second way word information signal
0, R
1, R
2... entry terminal 2.In this example, the first via and the second way word information signal are corresponding left and right sound track signals composition in the stereophonic signal.
Equipment shown in Figure 1 moves as follows.The sample input merger unit 6 of stereophonic signal left and right sound track signals composition, merger unit 6 is a compositing data stream with the sample merger someways, described sample is pressed following series arrangement in compositing data stream:
L
0，R
0，L
1，R
1，L
2，R
2，L
3，……
The composite signal that obtains like this is sent to data compression unit 12, and data compression unit is the lossless data compression scrambler preferably, for example Huffman type coding device or arithmetic encoder.
The benefit of lossless encoder is, they do to do the data expansion with non-damage decoder again after the data compression to information signal, and original information signal can be reduced in break-even mode basically.That is to say that information is not lost basically behind compression-expansion process.Lossless encoder can be variable length coder.Variable length coder is known in the present technique field.The example of this variable length coder is (front has been mentioned) huffman encoder, arithmetic encoder and Lempel-Ziv scrambler.' a kind of method of constructing minimum redundance code ' that this paper shows with reference to D.A.Huffman (' A method for the construc tion of minimum-redundancy codes '), be the file D2 in the associated documents catalogue, ' arithmetic coding is preliminary ' of G.G.Langdon work (' An introduction to arithmetic coding '), be the file D3 in the associated documents catalogue, ' a kind of general-purpose algorithm of sequence data compression ' of J.Ziv et al work (' A universal algorithm for sequential datacompression '), i.e. file D4 in the associated documents catalogue.
The influence of the control signal of its control input end 19 is delivered in the data compression that 12 pairs of composite signals of data compression unit are done, and produces corresponding data compression composite signal at output terminal 14.
Control signal generating unit 18 responds the composite signal on the output terminal 8 of merger unit 6 and produces control signal.When compression unit 12 was huffman encoder, the control signal of input end 19 was to have represented the statistical signal of the occurrence probability of the sample with a certain amplitude.When compression unit 12 was arithmetic encoder, control signal was a statistics signal equally, and it has also represented the occurrence probability of sample in the composite signal.
The compressibility that Fig. 1 equipment is obtained and respectively the two-way digital information signal is made the compressibility that the data compression obtains and compare can know that the equipment of Fig. 1 has 4% more dominance energy.
Data compression can be carried out on the basis of block mode, and the batch sample block of composite information signal can be carried out data compression in data compression unit 12.The piece of these acquisitions comprises the sample (L of first via information signal
i) and the sample (R of the second road information signal subsequently
i).Before these pieces a synchronization character can be arranged.Synchronization character has been arranged, on the basis that could in the corresponding data expansion equipment, receive composite signal has been separated into discrete information signal.
Fig. 2 represents another embodiment according to gas booster compressor of the present invention.The gas booster compressor of Fig. 2 and the equipment of Fig. 1 have a lot of similarities.The equipment of Fig. 2 has comprised all constituents of having touched upon among Fig. 1, and has comprised a predicting unit 20, and this unit is connected between merger unit 6 and the data compression unit 12.Predicting unit 20 comprises a fallout predictor 22 and a signal merge cells 24, and wherein signal merge cells 24 is subtracters.Fallout predictor is done prediction to input signal and provides at its output terminal to predict the outcome.Signal merge cells 24 obtains a residue signal with original composite signal with predicting the outcome to subtract each other, and this signal is from output terminal 26 outputs of predicting unit 20.
Fig. 2 gives more refined control signal generation unit 18 ', and it comprises and the connecting of fallout predictor 22 and converting unit 21.Converting unit 21 produces statistical signal from the output signal of fallout predictor, as the control signal of data original unit 12.
Here the circuit structure that should be mentioned in that fallout predictor 22 and signal merge cells 24 in the predicting unit 20 can be different with the circuit structure among Fig. 2.For example, fallout predictor 22 can be connected in the output terminal of signal merge cells 24 to the feedback path of this unit second input end, referring to Fig. 8.In this embodiment, fallout predictor 22 produces the signal estimation result from residue signal, offers merge cells 24 first input ends.
The merger unit of another embodiment of data compression device as shown in Figure 3.Merger unit 6 ' among Fig. 3 can be three road information signal merger one tunnel composite signal.In this example, three road information signals are respectively stereosonic left and right sound track signals composition and corresponding central signal.These sample merger are composite signal data stream as follows:
L
0，R
0，C
0，L
1，R
1，C
1，L
2，R
2，C
2，…
Can also produce other sequence similarly.For example with different orders, or each merger two samples of same signal for example.
Fig. 4 represents the embodiment of a recording unit, and this recording unit has comprised the data compression device shown in Fig. 1, and data compression device can comprise the predicting unit that Fig. 2 lists.Recording unit also comprises a r/w cell 50, is used for the data compression composite signal is write on the recording channel of record carrier 52.In this example, record carrier 52 is magnetic recording mediums, so r/w cell 50 comprises a magnetic head 54 at least the data compression composite signal is write on the record carrier 52.Record carrier also can be an optical record carrier, for example CD dish or DVD dish.
Fig. 5 represents the embodiment of a transmitter, and it sends the data compression composite signal via transmission medium TRM, and this transmitter comprises data compression device shown in Figure 1, and data compression device also can comprise predicting unit shown in Figure 2.Transmitter comprises that also one is used for the data compression composite signal is delivered to the transmitting element 60 of transmission medium TRM.Transmitting element 60 generally comprises an antenna 62.
Via the transmission of transmission medium,, need before sending, the compressing data composite signal make Error Correction of Coding and chnnel coding usually for example via radio frequency link or record carrier.Fig. 6 is illustrated in these treatment steps of being done on the data compression composite signal that is used for Fig. 4 recording process.Thereby the recording process of Fig. 6 has comprised at error correcting encoder well known in the art 56 and channel encoder 58.
Fig. 7 represents the embodiment according to data expansion equipment of the present invention, and this expansion equipment can be reduced to the data compression composite signal duplicate of original stereo signal left and right sound track signals composition.It has an entry terminal 70 that is used for receiving the raw data composite signal, and this raw data composite signal is provided by the data compression device among Fig. 1.Entry terminal 70 is connected with the input end 72 of data expanding element 74, and the output terminal 76 of data expanding element 74 is connected with the input end 78 of reduction unit unit 80.Reduction unit 80 has two output terminals 82 and 84, is connected with 88 with first and second outlet terminals 86 respectively.
This data expanding element 74 also has a control input end 73 that is used for receiving control signal.The control signal that 74 responses of this data expanding element offer described signal input end 73 to be being used for the data expansion of compressing data composite signal, so that obtain the data expansion composite information signal that needs at output terminal 76.The input end of control signal generating unit 75 is connected with the output of expanding element 76, and the output terminal of control signal generating unit 75 is connected with the input 73 of expanding element 74.
The equipment of Fig. 7 receives the data compression composite signal from input end 70, passes the signal to the input end 72 of data expanding element 74 then.Data expanding element 74 compressing data composite signals are carried out the data spread step, and the contragradience of the data compression step that data spread step data compression unit 12 just shown in Figure 1 is carried out is rapid.As a result, the duplicate of original composite signal is produced, and is sent to output terminal 76.The duplicate of composite signal then is sent to reduction unit 80.The data stream separation that reduction unit 80 will be defeated by it is a two paths of data stream, and the odd number sample in the composite signal outputs to one of them output terminal as 82, and the even number sample then outputs to another output terminal.Thereby the duplicate of stereophonic signal left and right sound track signals composition appears at terminal 86 and terminal 88 respectively.
This control signal generator 75 responds described growth data composite signals and produces control signal.
Fig. 8 represents another embodiment according to expansion equipment of the present invention.Expansion equipment and the equipment among Fig. 7 among Fig. 8 have very big similarity.The all constituents of the equipment of Fig. 8 equipment in comprising Fig. 7, also comprise a predicting unit 90, it is connected between data expanding element 74, reduction unit 80 and the converting unit 77.Predicting unit 90 comprises a fallout predictor 92 and a signal merge cells 94, and merge cells is a totalizer.The signal of 92 pairs of inputs of fallout predictor is predicted and prediction signal is delivered to output terminal.Signal merge cells 94 is added in the duplicate of original remaining composite signal on the predicted value of composite signal, obtains the duplicate of composite signal, is sent to the output terminal 96 of predicting unit 90 then.
Fig. 8 gives a refined control signal generation unit 75 ' more, and it comprises and being connected in series of fallout predictor 92 and converting unit 77.Converting unit 77 produces statistical signal from the output signal of fallout predictor, and this statistical signal is as the control signal of data expanding element 74.
Should mention that also the predicting unit 90 among Fig. 8 embodiment also can have circuit structure as shown in Figure 2.
The reduction unit of another embodiment of data expansion equipment as shown in Figure 9.The reduction unit 80 ' of Fig. 9 can restore three road information signals from the duplicate of composite signal.In this example, this three road information signal is respectively the left and right sound track signals composition and the corresponding central signal of stereophonic signal.
Figure 10 represents data expansion equipment shown in Figure 7, this data expansion equipment be included in a reclaim equiment in.This reclaim equiment comprises a reading unit 100 again, this reading unit compression combined signal of reading of data from the recording channel of record carrier 52.In this example, record carrier 52 is a magnetic recording medium, so reading unit 100 comprises a magnetic head 102 at least, is used for from the compression combined signal of record carrier 52 reading of data.Yet record carrier can also be optical record carrier, for example CD dish or DVD dish.
Figure 11 represents the embodiment of a receiver, and this receiver receives the data compression composite signal via transmission medium TRM, and this transmission medium TRM comprises data expansion equipment shown in Figure 7.This receiver also comprises receiving element 105, is used for receiving the data compression composite signal from transmission medium TRM.This receiving element 105 can comprise antenna 107.
By above explanation as can be known, transmission via transmission medium, for example, need make Error Correction of Coding and chnnel coding to residue signal usually before the transmission, so also need to do corresponding channel-decoding sign indicating number and error correction decoding at receiving end via radio frequency link or a certain record carrier.Figure 12 represents to do to received signal the treatment step of channel-decoding and error correction, and received signal is to be received to be used for reclaim equiment shown in Figure 10 by reading device 100.Therefore reclaim equiment shown in Figure 12 has comprised in channel decoder well known in the art 110 and error correction unit 112, is used for obtaining the duplicate of data compression composite signal.
The present invention is with reference to being described, it should be understood that the present invention is not limited in these examples with the preferred embodiment.So the various various modifications that do not deviate from by the scope of the invention that limits in the claim are conspicuous for being familiar with those skilled in the art.As mentioned above, will be that one tunnel composite signal is to realize that data compression is possible more than the information signal merger of two-way.
And the present invention also is its each novel features or these combination of features.
The associated documents catalogue
(D1)EP-A?402,973(PHN13.241)
(D2)‘A?method?for?the?construction?of?minimum-redundancycodes’，by?D.A.Huffman?in?Proc.of?the?IRE，Vol.40(10)，September?1952.
(D3)‘An?introduction?to?arithmetic?coding’by?G.G.Langdon，IBM?J.Res.Develop.，Vol.28(2)，March?1984.
(D4)‘A?universal?algorithm?for?sequential?data?compression’by?J.Ziv?et?al，IEEE?Trans.on?Inform.Theory，Vol.IT-23，1997.
Claims (7)
1. the record carrier that obtains by a kind of transmitter, this record carrier has comprised the data compression composite signal that is recorded on the described record carrier recording channel, described transmitter is used for sending the packed data digital information signal and occurring with the form of recording unit via transmission medium, data compression composite information signal recording on the recording channel of record carrier, this transmitter has comprised a kind of being used for the first via and the second way word information signal are made the data compression device that data are compressed at least, wherein each road in the two-way information signal all comprises subsequent samples at least, this transmitter also comprises data compression composite information signal application in the application apparatus of transmission medium with data compression composite information signal is written on the write device of record carrier, wherein, described data compression device comprises:
The device of-reception the first via and the second way word information signal,
-first via and the second way word information signal are merged obtaining the signal combining means of composite information signal,
-the composite information signal is done data compressions obtaining the data compression device of data compression composite information signal,
-output unit of data compression composite information signal is provided,
Wherein, this signal combining means has comprised the merger device, and it is circuit-switched data stream that this merger device is used for the first via and the second way word information signal merger successively, obtaining above-mentioned composite information signal,
Above-mentioned data compression device has a control input end that is used for receiving control signal, and respond this control signal to be used for data compression to the composite information signal, and control signal generator means is used for producing control signal, this control signal generator means has an input end to be used for receiving the composite information signal, and response composite information signal is to be used to produce control signal.
2. the described record carrier of claim 1, wherein, this control signal has been represented a statistical parameter of composite signal.
3. claim 1 or 2 described record carriers, described data compression device is done the data compression to n digital information signal, n 〉=2 wherein, wherein, signal combining means can be circularly is the composite information signal with the sample of each signal in n digital information signal merger successively.
4. the described record carrier of claim 1,2 or 3, wherein, this data compression device has comprised the lossless compress device.
5. the described record carrier of claim 4, wherein, this data compression device also comprises prediction unit and lossless compress device, wherein this prediction unit is used for the composite information signal is done prediction and obtained remaining composite signal, and this lossless compress device can be made lossless compress to obtain packed data composite information signal to remaining composite signal.
6. claim 4 or 5 described record carriers, wherein, this lossless compress device comprises a Huffman type coding device or an arithmetic encoder.
7. each described record carrier among the claim 1-6, wherein, described transmitter also comprises encoder for correcting and/or channel coding device, because before data compression composite information signal is acted on transmission medium, must carry out Error Correction of Coding and/or chnnel coding by compressing data composite information signal
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| EP97200104.4 | 1997-01-16 |
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| US6327303B1 (en) * | 1998-07-30 | 2001-12-04 | Motorola, Inc. | Method and system for data transmission using a lossy compression service |
| CN1973319B (en) * | 2004-06-21 | 2010-12-01 | 皇家飞利浦电子股份有限公司 | Method and device for encoding and decoding multi-channel audio signals |
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| JPS60201572A (en) * | 1984-03-22 | 1985-10-12 | Matsushita Electric Ind Co Ltd | Multi-channel recorder |
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| US5083310A (en) * | 1989-11-14 | 1992-01-21 | Apple Computer, Inc. | Compression and expansion technique for digital audio data |
| US5642463A (en) * | 1992-12-21 | 1997-06-24 | Sharp Kabushiki Kaisha | Stereophonic voice recording and playback device |
| JPH06187000A (en) * | 1992-12-21 | 1994-07-08 | Sharp Corp | Solid state stereophonic speech recording and reproducing device |
| EP0678226B1 (en) * | 1993-10-27 | 2003-05-14 | Koninklijke Philips Electronics N.V. | Transmission and reception of a first and a second signal component |
| US5451942A (en) * | 1994-02-04 | 1995-09-19 | Digital Theater Systems, L.P. | Method and apparatus for multiplexed encoding of digital audio information onto a digital audio storage medium |
| EP0688113A2 (en) * | 1994-06-13 | 1995-12-20 | Sony Corporation | Method and apparatus for encoding and decoding digital audio signals and apparatus for recording digital audio |
| US5818943A (en) * | 1994-10-25 | 1998-10-06 | U.S. Philips Corporation | Transmission and reception of a first and a second main signal component |
| ATE309644T1 (en) * | 1996-02-08 | 2005-11-15 | Koninkl Philips Electronics Nv | N-CHANNEL TRANSMISSION COMPATIBLE WITH 2-CHANNEL AND 1-CHANNEL TRANSMISSION |
| WO1997038494A1 (en) * | 1996-04-10 | 1997-10-16 | Philips Electronics N.V. | Encoding apparatus for encoding a plurality of information signals |
| EP0843933B1 (en) * | 1996-05-08 | 2004-10-27 | Koninklijke Philips Electronics N.V. | Transmission of a digital information signal having a specific first sampling frequency |
| US6269338B1 (en) * | 1996-10-10 | 2001-07-31 | U.S. Philips Corporation | Data compression and expansion of an audio signal |
| DE69723959T2 (en) * | 1996-11-11 | 2004-06-17 | Koninklijke Philips Electronics N.V. | DATA COMPRESSION AND DECOMPRESSION BY RICE ENCODERS / DECODERS |
-
1998
- 1998-01-07 ID IDW980078D patent/ID20566A/en unknown
- 1998-01-07 EP EP98900016A patent/EP0904637A1/en not_active Withdrawn
- 1998-01-07 WO PCT/IB1998/000017 patent/WO1998032230A1/en not_active Ceased
- 1998-01-07 CN CNA031409733A patent/CN1480940A/en active Pending
- 1998-01-07 EP EP03102217A patent/EP1363283A3/en not_active Ceased
- 1998-01-07 JP JP52916598A patent/JP3945827B2/en not_active Expired - Fee Related
- 1998-01-07 CN CNB988000342A patent/CN1148004C/en not_active Expired - Fee Related
- 1998-01-07 KR KR1019980707303A patent/KR100526942B1/en not_active Expired - Fee Related
- 1998-01-14 MY MYPI98000152A patent/MY119912A/en unknown
- 1998-01-15 US US09/007,551 patent/US6266368B1/en not_active Expired - Fee Related
- 1998-02-16 TW TW087102116A patent/TW418574B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| EP1363283A2 (en) | 2003-11-19 |
| US6266368B1 (en) | 2001-07-24 |
| EP0904637A1 (en) | 1999-03-31 |
| MY119912A (en) | 2005-08-30 |
| TW418574B (en) | 2001-01-11 |
| KR100526942B1 (en) | 2006-03-14 |
| WO1998032230A1 (en) | 1998-07-23 |
| JP2000508146A (en) | 2000-06-27 |
| JP3945827B2 (en) | 2007-07-18 |
| CN1216178A (en) | 1999-05-05 |
| CN1148004C (en) | 2004-04-28 |
| EP1363283A3 (en) | 2004-01-02 |
| KR20000064612A (en) | 2000-11-06 |
| ID20566A (en) | 1999-01-14 |
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